Finding the Fourth Proportional to 200,729.72, 276,927.98 and 115,830.38

Step by Step Solution

1. Step 1: Write the proportion equation
   200,729.72 : 276,927.98 = 115,830.38 : x
2. Step 2: Convert to fraction form
   200,729.72/276,927.98 = 115,830.38/x
3. Step 3: Cross multiply
   200,729.72x = 276,927.98 × 115,830.38
4. Step 4: Simplify right side
   200,729.72x = 32,076,673,156.03
5. Step 5: Solve for x
   x = 32,076,673,156.03/200,729.72
6. Step 6: Final answer
   x = 159,800.32